Finding the Fourth Proportional to 212,323.68, 318,527.28 and 70,163.24
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Solution
The fourth proportional to 212,323.68, 318,527.28 and 70,163.24 is: 105,258.66
Step by Step Solution
- Step 1: Write the proportion equation
212,323.68 : 318,527.28 = 70,163.24 : x - Step 2: Convert to fraction form
212,323.68/318,527.28 = 70,163.24/x - Step 3: Cross multiply
212,323.68x = 318,527.28 × 70,163.24 - Step 4: Simplify right side
212,323.68x = 22,348,905,993.19 - Step 5: Solve for x
x = 22,348,905,993.19/212,323.68 - Step 6: Final answer
x = 105,258.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.